qt-everywhere-src-5.14.1/qtwayland/src/hardwareintegration/compositor/libhybris-egl-server/libhybriseglserverbufferintegration.cpp - orbit - Git at Google

 /****************************************************************************
 **
 ** Copyright (C) 2017 Jolla Ltd, author: <giulio.camuffo@jollamobile.com>
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the QtWaylandCompositor module of the Qt Toolkit.
 **
 ** $QT_BEGIN_LICENSE:GPL$
 ** Commercial License Usage
 ** Licensees holding valid commercial Qt licenses may use this file in
 ** accordance with the commercial license agreement provided with the
 ** Software or, alternatively, in accordance with the terms contained in
 ** a written agreement between you and The Qt Company. For licensing terms
 ** and conditions see https://www.qt.io/terms-conditions. For further
 ** information use the contact form at https://www.qt.io/contact-us.
 **
 ** GNU General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU
 ** General Public License version 3 or (at your option) any later version
 ** approved by the KDE Free Qt Foundation. The licenses are as published by
 ** the Free Software Foundation and appearing in the file LICENSE.GPL3
 ** included in the packaging of this file. Please review the following
 ** information to ensure the GNU General Public License requirements will
 ** be met: https://www.gnu.org/licenses/gpl-3.0.html.
 **
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #include "libhybriseglserverbufferintegration.h"

 #include <QtGui/QOpenGLContext>
 #include <QtGui/QOpenGLTexture>
 #include <hybris/eglplatformcommon/hybris_nativebufferext.h>
 #include <wayland-server-core.h>

 QT_BEGIN_NAMESPACE
 LibHybrisEglServerBuffer::LibHybrisEglServerBuffer(LibHybrisEglServerBufferIntegration *integration, const QImage &qimage, QtWayland::ServerBuffer::Format format)
     : QtWayland::ServerBuffer(qimage.size(),format)
     , m_integration(integration)
 {
     m_format = format;

     EGLint egl_format;
     switch (m_format) {
         case RGBA32:
             m_hybris_format = QtWaylandServer::qt_libhybris_egl_server_buffer::format_RGBA32;
             egl_format = HYBRIS_PIXEL_FORMAT_RGBA_8888;
             break;
         default:
             qWarning("LibHybrisEglServerBuffer: unsupported format");
             m_hybris_format = QtWaylandServer::qt_libhybris_egl_server_buffer::format_RGBA32;
             egl_format = HYBRIS_PIXEL_FORMAT_RGBA_8888;
             break;
     }

     if (!m_integration->eglHybrisCreateNativeBuffer(m_size.width(), m_size.height(), HYBRIS_USAGE_HW_TEXTURE, egl_format, &m_stride, &m_buffer)) {
         qWarning("LibHybrisEglServerBuffer: Failed to create egl buffer");
         return;
     }

     int numInts;
     int numFds;
     m_integration->eglHybrisGetNativeBufferInfo(m_buffer, &numInts, &numFds);
     m_ints.resize(numInts);
     m_fds.resize(numFds);
     m_integration->eglHybrisSerializeNativeBuffer(m_buffer, m_ints.data(), m_fds.data());

     m_image = m_integration->eglCreateImageKHR(EGL_NO_CONTEXT, EGL_NATIVE_BUFFER_ANDROID, m_buffer, 0);

     if (!QOpenGLContext::currentContext()) {
         qWarning("LibHybrisEglServerBuffer: No current context when creating buffer. Texture loading will fail");
         return;
     }

     m_texture = new QOpenGLTexture(QOpenGLTexture::Target2D);
     m_texture->create();

     m_texture->bind();

     m_integration->glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, m_image);

     glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, qimage.width(), qimage.height(), GL_RGBA, GL_UNSIGNED_BYTE, qimage.constBits());

     m_texture->release();
     m_texture->setSize(m_size.width(), m_size.height());
 }

 struct ::wl_resource *LibHybrisEglServerBuffer::resourceForClient(struct ::wl_client *client)
 {
     auto *bufferResource = resourceMap().value(client);
     if (!bufferResource) {
         auto integrationResource = m_integration->resourceMap().value(client);
         if (!integrationResource) {
             qWarning("LibHybrisEglServerBuffer::resourceForClient: Trying to get resource for ServerBuffer. But client is not bound to the libhybris_egl interface");
             return 0;
         }
         struct ::wl_resource *egl_integration_resource = integrationResource->handle;
         Resource *resource = add(client, 1);
         wl_resource *bufRes = wl_resource_create(client, &qt_libhybris_buffer_interface,-1, 0);

         m_integration->send_server_buffer_created(egl_integration_resource, resource->handle, bufRes, m_fds.size(), QByteArray((char *)m_ints.data(), m_ints.size() * sizeof(int32_t)),
                                     m_name, m_size.width(), m_size.height(), m_stride, m_format);

         for (int i = 0; i < m_fds.size(); ++i) {
             send_add_fd(resource->handle, m_fds.at(i));
         }

         return resource->handle;
     }
     return bufferResource->handle;
 }

 QOpenGLTexture *LibHybrisEglServerBuffer::toOpenGlTexture()
 {
     return m_texture;
 }

 LibHybrisEglServerBufferIntegration::LibHybrisEglServerBufferIntegration()
 {
 }

 LibHybrisEglServerBufferIntegration::~LibHybrisEglServerBufferIntegration()
 {
 }

 bool LibHybrisEglServerBufferIntegration::initializeHardware(QWaylandCompositor *compositor)
 {
     Q_ASSERT(QGuiApplication::platformNativeInterface());

     m_egl_display = static_cast<EGLDisplay>(QGuiApplication::platformNativeInterface()->nativeResourceForIntegration("egldisplay"));
     if (!m_egl_display) {
         qWarning("Can't initialize libhybris egl server buffer integration. Missing egl display from platform plugin");
         return false;
     }

     m_egl_create_buffer = reinterpret_cast<PFNEGLHYBRISCREATENATIVEBUFFERPROC>(eglGetProcAddress("eglHybrisCreateNativeBuffer"));
     if (!m_egl_create_buffer) {
         qWarning("Failed to initialize libhybris egl server buffer integration. Could not find eglHybrisCreateNativeBuffer.\n");
         return false;
     }
     m_egl_get_buffer_info = reinterpret_cast<PFNEGLHYBRISGETNATIVEBUFFERINFOPROC>(eglGetProcAddress("eglHybrisGetNativeBufferInfo"));
     if (!m_egl_get_buffer_info) {
         qWarning("Failed to initialize libhybris egl server buffer integration. Could not find eglHybrisGetNativeBufferInfo.\n");
         return false;
     }
     m_egl_serialize_buffer = reinterpret_cast<PFNEGLHYBRISSERIALIZENATIVEBUFFERPROC>(eglGetProcAddress("eglHybrisSerializeNativeBuffer"));
     if (!m_egl_serialize_buffer) {
         qWarning("Failed to initialize libhybris egl server buffer integration. Could not find eglHybrisSerializeNativeBuffer.\n");
         return false;
     }

     const char *extensionString = eglQueryString(m_egl_display, EGL_EXTENSIONS);
     if (!extensionString || !strstr(extensionString, "EGL_KHR_image")) {
         qWarning("Failed to initialize libhybris egl server buffer integration. There is no EGL_KHR_image extension.\n");
         return false;
     }
     m_egl_create_image = reinterpret_cast<PFNEGLCREATEIMAGEKHRPROC>(eglGetProcAddress("eglCreateImageKHR"));
     m_egl_destroy_image = reinterpret_cast<PFNEGLDESTROYIMAGEKHRPROC>(eglGetProcAddress("eglDestroyImageKHR"));
     if (!m_egl_create_image || !m_egl_destroy_image) {
         qWarning("Failed to initialize libhybris egl server buffer integration. Could not resolve eglCreateImageKHR or eglDestroyImageKHR");
         return false;
     }

     m_gl_egl_image_target_texture_2d = reinterpret_cast<PFNGLEGLIMAGETARGETTEXTURE2DOESPROC>(eglGetProcAddress("glEGLImageTargetTexture2DOES"));
     if (!m_gl_egl_image_target_texture_2d) {
         qWarning("Failed to initialize libhybris egl server buffer integration. Could not find glEGLImageTargetTexture2DOES.\n");
         return false;
     }

     QtWaylandServer::qt_libhybris_egl_server_buffer::init(compositor->display(), 1);
     return true;
 }

 bool LibHybrisEglServerBufferIntegration::supportsFormat(QtWayland::ServerBuffer::Format format) const
 {
     switch (format) {
         case QtWayland::ServerBuffer::RGBA32:
             return true;
         case QtWayland::ServerBuffer::A8:
             return false;
         default:
             return false;
     }
 }

 QtWayland::ServerBuffer *LibHybrisEglServerBufferIntegration::createServerBufferFromImage(const QImage &qimage, QtWayland::ServerBuffer::Format format)
 {
     return new LibHybrisEglServerBuffer(this, qimage, format);
 }

 QT_END_NAMESPACE
	/****************************************************************************
	**
	** Copyright (C) 2017 Jolla Ltd, author: <giulio.camuffo@jollamobile.com>
	** Contact: https://www.qt.io/licensing/
	**
	** This file is part of the QtWaylandCompositor module of the Qt Toolkit.
	**
	** $QT_BEGIN_LICENSE:GPL$
	** Commercial License Usage
	** Licensees holding valid commercial Qt licenses may use this file in
	** accordance with the commercial license agreement provided with the
	** Software or, alternatively, in accordance with the terms contained in
	** a written agreement between you and The Qt Company. For licensing terms
	** and conditions see https://www.qt.io/terms-conditions. For further
	** information use the contact form at https://www.qt.io/contact-us.
	**
	** GNU General Public License Usage
	** Alternatively, this file may be used under the terms of the GNU
	** General Public License version 3 or (at your option) any later version
	** approved by the KDE Free Qt Foundation. The licenses are as published by
	** the Free Software Foundation and appearing in the file LICENSE.GPL3
	** included in the packaging of this file. Please review the following
	** information to ensure the GNU General Public License requirements will
	** be met: https://www.gnu.org/licenses/gpl-3.0.html.
	**
	** $QT_END_LICENSE$
	**
	****************************************************************************/

	#include "libhybriseglserverbufferintegration.h"

	#include <QtGui/QOpenGLContext>
	#include <QtGui/QOpenGLTexture>
	#include <hybris/eglplatformcommon/hybris_nativebufferext.h>
	#include <wayland-server-core.h>

	QT_BEGIN_NAMESPACE
	LibHybrisEglServerBuffer::LibHybrisEglServerBuffer(LibHybrisEglServerBufferIntegration *integration, const QImage &qimage, QtWayland::ServerBuffer::Format format)
	: QtWayland::ServerBuffer(qimage.size(),format)
	, m_integration(integration)
	{
	m_format = format;

	EGLint egl_format;
	switch (m_format) {
	case RGBA32:
	m_hybris_format = QtWaylandServer::qt_libhybris_egl_server_buffer::format_RGBA32;
	egl_format = HYBRIS_PIXEL_FORMAT_RGBA_8888;
	break;
	default:
	qWarning("LibHybrisEglServerBuffer: unsupported format");
	m_hybris_format = QtWaylandServer::qt_libhybris_egl_server_buffer::format_RGBA32;
	egl_format = HYBRIS_PIXEL_FORMAT_RGBA_8888;
	break;
	}

	if (!m_integration->eglHybrisCreateNativeBuffer(m_size.width(), m_size.height(), HYBRIS_USAGE_HW_TEXTURE, egl_format, &m_stride, &m_buffer)) {
	qWarning("LibHybrisEglServerBuffer: Failed to create egl buffer");
	return;
	}

	int numInts;
	int numFds;
	m_integration->eglHybrisGetNativeBufferInfo(m_buffer, &numInts, &numFds);
	m_ints.resize(numInts);
	m_fds.resize(numFds);
	m_integration->eglHybrisSerializeNativeBuffer(m_buffer, m_ints.data(), m_fds.data());

	m_image = m_integration->eglCreateImageKHR(EGL_NO_CONTEXT, EGL_NATIVE_BUFFER_ANDROID, m_buffer, 0);

	if (!QOpenGLContext::currentContext()) {
	qWarning("LibHybrisEglServerBuffer: No current context when creating buffer. Texture loading will fail");
	return;
	}

	m_texture = new QOpenGLTexture(QOpenGLTexture::Target2D);
	m_texture->create();

	m_texture->bind();

	m_integration->glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, m_image);

	glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, qimage.width(), qimage.height(), GL_RGBA, GL_UNSIGNED_BYTE, qimage.constBits());

	m_texture->release();
	m_texture->setSize(m_size.width(), m_size.height());
	}

	struct ::wl_resource LibHybrisEglServerBuffer::resourceForClient(struct ::wl_client client)
	{
	auto *bufferResource = resourceMap().value(client);
	if (!bufferResource) {
	auto integrationResource = m_integration->resourceMap().value(client);
	if (!integrationResource) {
	qWarning("LibHybrisEglServerBuffer::resourceForClient: Trying to get resource for ServerBuffer. But client is not bound to the libhybris_egl interface");
	return 0;
	}
	struct ::wl_resource *egl_integration_resource = integrationResource->handle;
	Resource *resource = add(client, 1);
	wl_resource *bufRes = wl_resource_create(client, &qt_libhybris_buffer_interface,-1, 0);

	m_integration->send_server_buffer_created(egl_integration_resource, resource->handle, bufRes, m_fds.size(), QByteArray((char )m_ints.data(), m_ints.size() sizeof(int32_t)),
	m_name, m_size.width(), m_size.height(), m_stride, m_format);

	for (int i = 0; i < m_fds.size(); ++i) {
	send_add_fd(resource->handle, m_fds.at(i));
	}

	return resource->handle;
	}
	return bufferResource->handle;
	}

	QOpenGLTexture *LibHybrisEglServerBuffer::toOpenGlTexture()
	{
	return m_texture;
	}

	LibHybrisEglServerBufferIntegration::LibHybrisEglServerBufferIntegration()
	{
	}

	LibHybrisEglServerBufferIntegration::~LibHybrisEglServerBufferIntegration()
	{
	}

	bool LibHybrisEglServerBufferIntegration::initializeHardware(QWaylandCompositor *compositor)
	{
	Q_ASSERT(QGuiApplication::platformNativeInterface());

	m_egl_display = static_cast<EGLDisplay>(QGuiApplication::platformNativeInterface()->nativeResourceForIntegration("egldisplay"));
	if (!m_egl_display) {
	qWarning("Can't initialize libhybris egl server buffer integration. Missing egl display from platform plugin");
	return false;
	}

	m_egl_create_buffer = reinterpret_cast<PFNEGLHYBRISCREATENATIVEBUFFERPROC>(eglGetProcAddress("eglHybrisCreateNativeBuffer"));
	if (!m_egl_create_buffer) {
	qWarning("Failed to initialize libhybris egl server buffer integration. Could not find eglHybrisCreateNativeBuffer.\n");
	return false;
	}
	m_egl_get_buffer_info = reinterpret_cast<PFNEGLHYBRISGETNATIVEBUFFERINFOPROC>(eglGetProcAddress("eglHybrisGetNativeBufferInfo"));
	if (!m_egl_get_buffer_info) {
	qWarning("Failed to initialize libhybris egl server buffer integration. Could not find eglHybrisGetNativeBufferInfo.\n");
	return false;
	}
	m_egl_serialize_buffer = reinterpret_cast<PFNEGLHYBRISSERIALIZENATIVEBUFFERPROC>(eglGetProcAddress("eglHybrisSerializeNativeBuffer"));
	if (!m_egl_serialize_buffer) {
	qWarning("Failed to initialize libhybris egl server buffer integration. Could not find eglHybrisSerializeNativeBuffer.\n");
	return false;
	}

	const char *extensionString = eglQueryString(m_egl_display, EGL_EXTENSIONS);
	if (!extensionString \|\| !strstr(extensionString, "EGL_KHR_image")) {
	qWarning("Failed to initialize libhybris egl server buffer integration. There is no EGL_KHR_image extension.\n");
	return false;
	}
	m_egl_create_image = reinterpret_cast<PFNEGLCREATEIMAGEKHRPROC>(eglGetProcAddress("eglCreateImageKHR"));
	m_egl_destroy_image = reinterpret_cast<PFNEGLDESTROYIMAGEKHRPROC>(eglGetProcAddress("eglDestroyImageKHR"));
	if (!m_egl_create_image \|\| !m_egl_destroy_image) {
	qWarning("Failed to initialize libhybris egl server buffer integration. Could not resolve eglCreateImageKHR or eglDestroyImageKHR");
	return false;
	}

	m_gl_egl_image_target_texture_2d = reinterpret_cast<PFNGLEGLIMAGETARGETTEXTURE2DOESPROC>(eglGetProcAddress("glEGLImageTargetTexture2DOES"));
	if (!m_gl_egl_image_target_texture_2d) {
	qWarning("Failed to initialize libhybris egl server buffer integration. Could not find glEGLImageTargetTexture2DOES.\n");
	return false;
	}

	QtWaylandServer::qt_libhybris_egl_server_buffer::init(compositor->display(), 1);
	return true;
	}

	bool LibHybrisEglServerBufferIntegration::supportsFormat(QtWayland::ServerBuffer::Format format) const
	{
	switch (format) {
	case QtWayland::ServerBuffer::RGBA32:
	return true;
	case QtWayland::ServerBuffer::A8:
	return false;
	default:
	return false;
	}
	}

	QtWayland::ServerBuffer *LibHybrisEglServerBufferIntegration::createServerBufferFromImage(const QImage &qimage, QtWayland::ServerBuffer::Format format)
	{
	return new LibHybrisEglServerBuffer(this, qimage, format);
	}

	QT_END_NAMESPACE